Description : Plants absorb dissolved nitrates from soil and convert them into?
Last Answer : free nitrogen
Description : Nitrifying bacteria (a) oxidise ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia (d) reduce nitrates to free nitrogen.
Last Answer : (a) oxidise ammonia to nitrates
Description : Higher plants take up nitrogen as (a) Nitrites only (b) Nitrates only (c) Nitrates and ammonia (d) Urea
Last Answer : Ans:(c)
Description : Biofertilizers convert nitrogen to (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : (2) ammonia Explanation: Bio-fertilizers are microorganisms which bring about nutrient enrichment of soil by enhancing the availability of nutrients to crops. The micro-organisms which act as bio ... bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
Description : Biofertilizers convert nitrogen to _______ . (1) nitrates (2) ammonia (3) nitrogenase (4) amino acids
Last Answer : ammonia
Description : Which of the following is a balanced fertilizer for plants? (a) Urea (b) Ammonia sulphate (c) Nitrates (d) Compost
Last Answer : Ans:(d)
Description : In sewage having fully oxidised organic matter, the nitrogen exists in the form of A. Nitrites B. Nitrates C. Free ammonia D. Aluminoid nitrogen
Last Answer : ANS: B
Description : A well oxidized sewage contains nitrogen mainly as A. Nitrates B. Nitrites C. Free ammonia D. None of these
Last Answer : ANS: A
Description : If the sewage is fully oxidized, the nitrogen is in the form of – (1) Nitrites (2) Ammonia (3) Nitramines (4) Nitrates
Last Answer : (4) Nitrates Explanation: Oxidized forms of nitrogen include nitrite (NO2) and nitrate (NO3). Nitrogen mainly occurs in wastewater in this form. Because nitrite is easily oxidized to nitrate, nitrate is the compound predominantly found in groundwater and surface waters.
Description : Nitrogen cycle of sewage, is A. Liberation of ammonia-formation of nitrites-formation of nitratesliberation of nitrogen B. Liberation of nitrogen-liberation of ammonia-formation of ... of ammonia D. Formation of nitrates-formation of nitrites-liberation of nitratesliberation of nitrates
Description : If the sewage is fully oxidized, the nitrogen is in the form of (1) Nitrites (2) Ammonia (3) Nitramines (4) Nitrates
Last Answer : Nitrates
Description : Read the statement given below (i ) Seeds require moisture for germination . (ii) Plant can absorb nutrients in dissolved form. (iii) Irrigation protects crop from both frost and hot air currents . (iv) Irrigation improves soil texture . a) i and ii b) i ,ii, iii c) i , ii , iii , iv . d) i and iii
Last Answer : a) i and ii
Description : Complete hydrolysis of proteins produces : (a) Ammonia and carbon dioxide (b) Urea and uric acid (c) A mixture of amino acids (d) Glycogen and a fatty acid
Last Answer : A mixture of amino acids
Description : The 2 nitrogen atoms in urea are contributed by (A) Ammonia and glutamate (B) Glutamine and glutamate (C) Ammonia and aspartate (D) Ammonia and alanine
Last Answer : Answer : C
Description : Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate
Last Answer : (C) Ammonium phosphate
Description : Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia
Last Answer : (D) Liquid ammonia
Description : In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed
Last Answer : ANS: D
Description : Injurious effects of sulphates can be replaced with the addition of ________: a. Nitrates b. Phosphates c. Ammonia d. Ca & Mg
Description : Nitrogen fixation is a process of - (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia
Last Answer : (4) Conversion of molecular nitrogen to ammonia Explanation: Nitrogen fixation is a process by which nitrogen in the Earth's atmosphere is converted into ammonia (NH3) or other molecules available ... plants as nutrients. The conversion of organic nitrogen to proteins is achieved in Nitrogen cycle.
Description : Nitrogen fixation is a process of (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia
Last Answer : Conversion of molecular nitrogen to ammonia
Description : Microbial degradation of nitrates into atmospheric nitrogen is known as- (1) Ammonification (2) Nitrification (3) Denitrification (4) Putrefaction
Last Answer : (3) Denitrification Explanation: Denitrification is the biological conversion of nitrate to nitrogen gas, nitric oxide or nitrous oxide. It refers to nitrate reduction by bacterial species such as ... (N2). These bacteria use nitrate as an electron acceptor instead of oxygen during respiration.
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : Microbial degradation of nitrates into atmospheric nitrogen is known as : (1) Ammonification (2) Nitrification (3) Denitrification (4) Putrefaction
Last Answer : Denitrification
Description : During photosynthesis green plants absorb (1) nitrogen (2) carbon dioxide (3) carbon monoxide (4) oxygen
Last Answer : carbon dioxide
Description : (3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia ... -oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.
Last Answer : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these
Description : Urea is widely used as a fertilizer because it (a) is an organic compound (b) contains very high amounts of nitrogen (c) is soluble in water (d) mixes easily with soil
Last Answer : Ans:(b)
Description : Nitrates are converted to nitrogen by
Last Answer : Nitrates are converted to nitrogen by A. Nitrogen fixing bacteria B. Ammonification bacteria C. Denitrifying bacteria D. Nitrifying bacteria
Description : By which enzyme is Urea converted into ammonia and carbon dioxide? -Do You Know?
Last Answer : answer:
Description : Ammonia is converted into urea in
Last Answer : Ammonia is converted into urea in A. Heart B. Spleen C. Liver D. Brain
Description : Ammonia is converted into urea in _____ and filtered from blood and excreted out by_____
Last Answer : Ammonia is converted into urea in _____ and filtered from blood and excreted out by_____
Description : Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid
Description : From dietary protein as well as from the urea present in fluids secreted into the gastrointestinal tract intestinal bacteria produce (A) Carbondioxide (B) Ammonia (C) Ammonium sulphate (D) Creatine
Last Answer : Answer : B
Description : The unwanted amino acids abstracted from the tissues are either used up by the tissue or in the liver converted into (A) Ammonia (B) Urea (C) Ammonium salts (D) Uric acid
Description : By which enzyme is Urea converted into ammonia and carbon dioxide?
Last Answer : Urease
Description : which enzyme is Urea converted into ammonia and carbon dioxide?
Description : 1. By which enzyme is Urea converted into ammonia and carbon dioxide? 2. Who sings on ten rupee notes? 3. At which city is Largest mint in India located? 4. Which state has the ... Trees in tropical deciduous forest shed their leaves in which season? 20. Howmany hymns does the Rigveda consists?
Last Answer : Answer : 1. Urease 2. Governor (Reserve Bank of India) 3. Kolkata 4. Mizoram 5. Rajendra I 6. TSH 7. Governor 8. White 9. Silicon 10. Sir Eyrecoot 11. 1853 12. 1957 13. Calcium phosphate 14. ... plains 15. Shah Alam II16. Personal liberty under Article 21 17. Urea 18. Vulture 19. Dry season 20. 1028
Description : Chlorination of water does not remove (A) Ammonia content (B) B.O.D. (C) Organic matter content (D) Dissolved oxygen
Last Answer : (D) Dissolved oxygen
Description : The enthalpy change when ammonia gas is dissolved in water is called the heat of (A) Solution (B) Formation (C) Dilution (D) Combustion
Last Answer : (A) Solution
Description : The gas dissolved in water that makes it basic is : (1) ammonia (2) sulphur dioxide (3) hydrogen (4) carbon dioxide
Last Answer : Plants absorb mineral salts from soil sap in 2 ways.
Description : What Substances that absorb light convert it to .?
Last Answer : Optically active
Description : What Substances that absorb light convert it to what energy?
Description : Assertion `:-` In fish ammonia is excreted by diffusion through gill surface as ammonium ions. Reason `:-` Some amount of urea may be retained in the
Last Answer : Assertion `:-` In fish ammonia is excreted by diffusion through gill surface as ammonium ions. Reason ` ... . D. If both Assertion & Reason are false.
Description : Conversion of ammonia to urea is done by `…......................` Cycl -
Last Answer : Conversion of ammonia to urea is done by `…......................` Cycl - A. Ornithine cycle B. Arginine cycle C. Fumaric cycle D. Citrulline cycle
Description : In comparison to urea ammonia is
Last Answer : In comparison to urea ammonia is A. Less toxic B. Toxic C. Highly toxic D. None
Description : For formation of urea which one of the following is required alongwith ammonia
Last Answer : For formation of urea which one of the following is required alongwith ammonia A. Arginase, `CO_(2)` and `O_(2 ... D. Asparate, `CO_(2)` and `O_(2)`
Last Answer : Conversion of ammonia to urea is done by `…......................` Cycl - A. Omithine cycle B. Arginine cycle C. Fumaric cycle D. Citrulline cycle
Description : Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol
Last Answer : Ans: (b)